Why is it important to create pictorial and physical models before trying to solve an equation, solving a physics problem

Locate the element helium (He) on the periodic table. What is the period number in which helium is found? What is the group name in which helium is found?

A solenoid with a ferromagnetic core is

Centripetal force keeps an objectmoving in a circle and A. in a straight line. B. always pulls toward the center. C. pushes it out in space.

A bottle of ketchup is placed on a white table that is illuminated by a blue light source and a yellow light source. What color does the white table appear under these lights?

The planets in our solar system: are measured in light years have circular orbits have elliptical orbits are always the same distance from the sun

1. What is the arrangement of the outer planets? 2. What effect does their placement have the planets?

What is the degrees in 3 full turns

About how long does it take the sun to rotate once about its axis?

A researcher predicted that talking to plants enhances their growth. She gave 24 plants the same amount of water and sunlight. She talked to 12 of the 24 plants daily for 6 weeks and then measured their growth.

A cold block of metal is placed in contact with a warm block of metal. Which type of energy will be transferred between the blocks? thermal energy chemical energy electrical energy mechanical energy